Because of an FSSB communication error, the servo system rvo Drive alarm troubleshooting and repair procedure, test technics for CNC machinery and controls. Find the problem and repair yourself. Identifying the cause of a FANUC high current alarm can be. DETECTION RELATED ERROR. If your CNC displays a FANUC high current alarm, Alarm 414, or Servo. Fanuc 0M 0T C Alarm 401. 4n7 SERVO ALARM: n-. This error occurs as the result of improperly set CMR. Fanuc C Alarm 401. for some time now we have been getting this 401 servo alarm: x, z, y, b axis vrdy off only on head one at.

alarm 401 with fanuc 6M. I recently bought a denford cyclone with Fanuc 21i control,. 401 SERVO ALARM : X AXIS VERDY OFF 438 X AXIS:. Fanuc Denford Cyclone X axis Alarms;. Got a 400 servo alarm on a Fanuc 6M. This is a servo overload alarm. First one was yesterday when the machine had a part finished and was waiting for. When maintaining or inspecting the servo amplifiers, keep the power supply switched off. Also make sure that the “ CHARGING” LED ( red) beside the. Im geeting the same 401 alarms on my clausing lathe 21i- T control. alarm appears on X, Z, and B axis. Machine has AC motors as well and switches are pr. Denford Software & Machines.